R E V I E W: Ecological distribution of Dipterocarpaceae species in Indonesia

Abstract

Dipterocarpaceae is one of the biggest family with >500 species in the world, and most of dipterocarps population are grown in Indonesia which have high economical value of wood. One of the most important value from dipterocarps species is high on endemicities; there are up to 128 species (53.78%) from 238 dipterocarps species in Indonesia. Distribution of dipterocarps species would be affected by some factors especially edaphic, climate, and altitude. In Indonesia the dipterocarps species distribution could be shown from islands groups, number of species and forest types. Based on the observation of herbarium collection in Herbarium Bogoriense the distribution of the most dipterocarps species was in the altitude of 0-500 m and 500-1000 m on the dipterocarps forest type. Kalimantan and Sumatra were the two bigger islands with have the dipterocarps species distributed relatively high on population and species.

Potensi Jenis Dipterokarpa di Hutan Penelitian Labanan, Kabupaten Berau, Kalimantan Timur

“…Jumlah jenis yang terbanyak di Indonesia terdapat di Kalimantan sekitar 200 jenis, tidak termasuk Kalimantan bagian Utara dan faktor yang sangat berpengaruh di dalam pertumbuhan dan sebarannya adalah iklim dan tempat tumbuh (Purwaningsih, 2004). Banyaknya jenis yang terdapat dalam suku Dipterocarpaceae, sebagai penyokong produksi utama kayu dari hutan alam harus diketahui secara pasti potensinya, oleh karena itu diperlukan data dan informasi mengenai keragaman jenis dan potensi dari jenis-jenis Dipterocarpaceae yang terdapat di hutan penelitian Labanan.…”

Seagrass community structure of Tayando-Tam Island, Southeast Moluccas, Indonesia

“…The natural distribution area for tengkawang includes India, Thailand, Malaysia, Indonesia, Sarawak, Sabah, and The Philippines (Kettle 2010;Saner et al 2012;Widiyatno et al 2014). In Indonesia, the tengkawang tree can be found in Kalimantan and Sumatera islands (Purwaningsih 2004;Kettle 2010). The largest tengkawang-producer region is located in the Province of West Kalimantan, specifically in Sanggau, Kapuas Hulu, Sintang, Pontianak, Sambas, and Ketapang Regencies.…”

“…Furthermore, tengkawang tungkul is preferable by people in West Kalimantan because it produces bigger fruits. The harvested tengkawang fruits are processed in tengkawang fat factories in Pontianak to be exported to Japan and Europe as substitutes for chocolate butter in the chocolate industry (Purwaningsih 2004).…”

Short Communication: Rediscovery of a remnant habitat of the critically endangered species, Hopea sangal, in Pasuruan District, East Java, Indonesia

“…Dipterocarp species dominate on zonal red-yellow podzolic soils, altitudes below 1300 m asl., and rainfall >1000 mm per year (Purwaningsih 2004). There are up to 238 dipterocarp species in Indonesia (Purwaningsih 2004).…”

“…Dipterocarp species dominate on zonal red-yellow podzolic soils, altitudes below 1300 m asl., and rainfall >1000 mm per year (Purwaningsih 2004). There are up to 238 dipterocarp species in Indonesia (Purwaningsih 2004). According to Ashton (1982), the dipterocarps are distributed unevenly among Indonesia islands, because they are found mostly in the west of Wallace's Line and the north-west in Sunda.…”